Yes, theres nothing stopping you from casting a creature face-down, then turning it face-up in the same turn
A solution was needed: what if the Aura was itself a creature
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The manuscript found in each work is written to mimic its design, just as found in the Voynich, whether the spirals and flourishes present in Caged Sun, repeated in script: Or the block font, symbolic of the strong geometry and architectural designs of Chromatic Lantern: He also brought a particular narrative to Quicksilver Amulet, placing it firmly in the Brothers War era of Dominaria while at the same time keeping it true to its Da Vinci-esque roots
So, if your key cards are all expensive, you likely need to include some cheaper cards that help build to those other cards and vice versa
This is a fine threat in a creature-dense deck, but you get something special when you build around it with Whitemane Lion